Interpretation of organic waste gas treatment scheme
Release time:
2021-03-06
In environmental protection work, there are many concepts, in order to better carry outorganic waste gas treatmentWork, it is necessary to understand the relevant concepts, the next organic waste gas treatment equipment experts to interpret for everyone.
More commonly used is the dustfall, fly ash and total suspended particulate (T.S.P) concept. The dust reduction used in the organic waste gas treatment scheme refers to solid particles with a particle size greater than 10 μm in the air, which can settle to the ground in a relatively short period of time by gravity. Because the solid particles with a particle size of less than 10mm are not easy to settle and can float in the air for a long time, it is called floating dust. Total suspended matter (T.S.P) refers to solid particles in the air with a particle size of less than 100 μm.
organic waste gas treatmentProgramme
Organic gaseous pollutants include hydrocarbons, oxygen-containing organic compounds, nitrogen-containing organic compounds, sulfur-containing organic compounds, and gas-containing organic compounds. Below, the organic waste gas treatment scheme briefly introduces the treatment method of the next three gases, as follows:
1. "Three gas" ammonia recovery rate is low. At present, most plants have "three gas" recovery devices, and rarely determine the recovery rate of ammonia. There are neither strict operating procedures nor testing procedures and methods. Some plants use the purified gas after the "three gases" recovery of ammonia as boiler fuel or domestic gas. Experts in organic waste gas treatment equipment remind that due to the high content of NH3, the weight exceeds the standard after combustion, which has a certain impact on the health of employees.
2. After the "three gas" ammonia extraction, further extraction of H2, Ar and other gases. Most large-scale plants are equipped with hydrogen recovery devices, but small and medium-sized plants are generally not equipped with recovery devices.
3. The problem of dust and exhaust ammonia from urea prilling tower, whether it is a large plant or a medium-sized urea plant, has not yet been well resolved, and the pollution is still quite serious.
The treatment of nitric acid waste gas is generally paid attention to, but due to some objective reasons, the treatment device can not be very good operation. For example, in the ammonia selective catalytic reduction device, experts of organic waste gas treatment equipment learned that due to the high ammonia consumption, it is often started and stopped from time to time, and the improvement of the alkali absorption device is also affected by problems such as the sales and selling price of NaN02 and NaN03.
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